Ultrasonic cleaner



FIG. 1 is a perspective view of an ultrasonic cleaner showing, our newdesign, with the cover removed;

FIG. 2 is a perspective view thereof, with the cover attached;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is front elevational view thereof, the rear elevational viewbeing identical; and

FIG. 7 is a bottom plan view thereof.

The ornamental design for an ultrasonic cleaner, as shown.